8(x-7)=x(x-7)

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Solution for 8(x-7)=x(x-7) equation:


Simplifying
8(x + -7) = x(x + -7)

Reorder the terms:
8(-7 + x) = x(x + -7)
(-7 * 8 + x * 8) = x(x + -7)
(-56 + 8x) = x(x + -7)

Reorder the terms:
-56 + 8x = x(-7 + x)
-56 + 8x = (-7 * x + x * x)
-56 + 8x = (-7x + x2)

Solving
-56 + 8x = -7x + x2

Solving for variable 'x'.

Combine like terms: 8x + 7x = 15x
-56 + 15x + -1x2 = -7x + x2 + 7x + -1x2

Reorder the terms:
-56 + 15x + -1x2 = -7x + 7x + x2 + -1x2

Combine like terms: -7x + 7x = 0
-56 + 15x + -1x2 = 0 + x2 + -1x2
-56 + 15x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
-56 + 15x + -1x2 = 0

Factor a trinomial.
(-8 + x)(7 + -1x) = 0

Subproblem 1

Set the factor '(-8 + x)' equal to zero and attempt to solve: Simplifying -8 + x = 0 Solving -8 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + x = 0 + 8 x = 0 + 8 Combine like terms: 0 + 8 = 8 x = 8 Simplifying x = 8

Subproblem 2

Set the factor '(7 + -1x)' equal to zero and attempt to solve: Simplifying 7 + -1x = 0 Solving 7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1x = 0 + -7 -1x = 0 + -7 Combine like terms: 0 + -7 = -7 -1x = -7 Divide each side by '-1'. x = 7 Simplifying x = 7

Solution

x = {8, 7}

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